SI4122-D-GTR Silicon Laboratories Inc, SI4122-D-GTR Datasheet - Page 23

• Manufacturer Part Number: SI4122-D-GTR
• Description: IC SYNTHESIZER RF2/IF 24TSSOP
• Manufacturer: Silicon Laboratories Inc
• Type: Frequency Synthesizerr

Specifications of SI4122-D-GTR

• Pll: Yes
• Input: Clock
• Output: Clock
• Number Of Circuits: 1
• Ratio - Input:output: 1:2
• Differential - Input:output: No/No
• Frequency - Max: 1.5GHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP
• Frequency-max: 1.5GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Register 1. Phase Detector Gain Address Field (A[3:0]) = 0001
*Note: When AUTOK
Name
Bit
17:6
Bit
5:4
3:2
1:0
for programming Phase Detector Gain.
D17 D16 D15 D14 D13 D12 D11 D10 D9
0
0
P
Reserved
= 1, these bits do not need to be programmed. When AUTOK
K
K
0
K
Name
P2
P1
PI
[1:0]
[1:0]
[1:0]
0
0
0
Program to zero.
IF Phase Detector Gain Constant.*
N Value
<2048
2048–4095
4096–8191
>8191
RF2 Phase Detector Gain Constant.*
N Value
<4096
4096–8191
8192–16383
>16383
RF1 Phase Detector Gain Constant.*
N Value
<8192
8192–16383
16384–32767
>32767
0
0
Rev. 1.61
= 00
= 01
= 10
= 00
= 01
= 10
= 11
= 00
= 01
= 11
K
= 11
K
K
= 10
0
PI
P2
P1
D8
0
D7
0
Function
D6
0
P
= 0, use these recommended values
D5
K
PI
[1:0]
D4
D3
K
P2
[1:0]
D2
Si4133
D1
K
P1
[1:0]
D0
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